.subject {
	position: relative;
	width: 1000px;
	height: 280px;
	margin:640px 0 -100px;
	left:50%;
	margin-left:-470px;
	margin-bottom: 3000px;
}

.topblock,
.bottomblock {
	width: 100%;
	height: 50%;
}

.app {
	width: 13%;
	height: 130px;
	text-align: center;
	margin: auto;
	float: left;
}

.tubiao{
	height: 100px;
}
.tubiao img {
	width: 75px;
	height: 70px;
	margin-top: 20px;
	border-radius: 8px;
	background-color: rgba(200, 200, 200, 0.8);
}

.app a {
	text-decoration: none;
}

.app p {
	font-size: 16px;
	font-family: 幼圆;
	text-align: center;
	color: white;
}



